//
// Created by test on 22-11-22.
//
#include<sys/socket.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<unistd.h>
#include<stdlib.h>
#include<assert.h>
#include<string.h>
#include<stdio.h>
#include<error.h>
int main(int argc,char* argv[]){
    if(argc<=2){
        printf("argcerror");
    }
    const char* ip=argv[1];
    int port=atoi(argv[2]);
    struct sockaddr_in address;
    bzero(&address,sizeof(address));
    address.sin_family=AF_INET;
    address.sin_port=htons(port);
    inet_pton(AF_INET,ip,&address.sin_addr);
    int sock=socket(PF_INET,SOCK_STREAM,0);
    assert(sock>=0);
    int ret=bind(sock,(struct sockaddr *)&address,sizeof(address));
    assert(ret!=-1);
    ret=listen(sock,5);
    assert(ret!=-1);
    sleep(20);
    struct sockaddr_in client;
    socklen_t client_addrlength=sizeof(client);
    int connfd=accept(sock,(struct sockaddr*)&client,&client_addrlength);
    if(connfd<0){
        printf("error");
    }
    else{
        char remote[INET_ADDRSTRLEN];
        printf("connected with ip:%s and port:%d\n",inet_ntop(AF_INET,&client.sin_addr,remote,INET_ADDRSTRLEN),ntohs(client.sin_port));
        close(connfd);
    }
    close(sock);
    return 0;
}
